Prove < 2 and < 7 are supplementary. line l is parallel to line m

What is the least common factor of 6 and 8

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

Me. i can't figure out this question. give an explanation too. .